Serving Mineral Springs, NC and surrounding areas
Approved
In business since 2017
Emergency services offered
Warranties offered
"The guys were prompt, professional and they cleaned up once done. The office staff provided excellent customer service, they took time to answer all my questions no matter how may times I called back. I have no complaints, just Thanks!"
+36
Serving Mineral Springs, NC and surrounding areas
Approved
In business since 1927
Free estimates
Emergency services offered
"I hired GSM Services to replace my A/C unit and furnace with a newer, upgraded system. A few weeks ago Kelly came to my house to give me an estimate for a new heating and air system. He was on time and very professional. He surveyed my existing system, took measurements of my house, and did some calculations to determine exactly what type and capacity system that I would need. He showed and explained to me several options as well as their prices. He wasn’t pushy as he left in order to give me time to review the different options before making my decision. I called the office the next day with my decision and to set up a date and time for installation. Today (May 22) Kyle and Craig showed up on time and were extremely professional as well. They worked from 8:30 to 5:30 completing the replacement of my entire heating/air system. The field team leader also showed up just to ensure that everything was going smoothly. They were very helpful in answering any questions that I had throughput the day and they took the time to explain to me about the new system after installation was complete (I.e. how to operate the new programmable thermostat). Overall, it was a great experience and I will definitely use them again."
+66
Serving Mineral Springs, NC and surrounding areas
Approved
In business since 2010
Free estimates
Small jobs welcome
"Very professional, responsive, on time and fixed my air so I am very satisfied. I would highly recommend this company and will be using them for my heat and air for the future."
Serving Mineral Springs, NC and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1995
Free estimates
Credit card accepted
"This company was just wonderful. Our new home had a huge job and they got it all completed in one day. They worked a 12 hour day just to insure we had air conditioning when we went to bed. Heath was amazing and very knowledgeable."
Serving Mineral Springs, NC and surrounding areas
Approved
In business since 2015
Free estimates
Emergency services offered
"I sought a pro on Google who could do an air conditioning tune up and Neil of Mr.Furnace HVAC answered my call. He was about to finish for the evening but said he could pass by around 2130 to have a look at my unit. He was on time, very professional and assessed my issue and had all the materials to fix it right on the spot and at a very reasonable price. I would recommend him to anyone needing a/c work done as he is the boss of his company and as a result has very little, if any overhead so he is able to do the necessary repairs for a very good price."
+6
Serving Mineral Springs, NC and surrounding areas
Approved
In business since 2010
Emergency services offered
Warranties offered
"Excelente servicio. Repararon mi aire acondicionado de manera rápida y profesional. El técnico fue puntual, explicó claramente cuál era el problema y dejó todo funcionando perfectamente. Además, el precio fue justo y la atención muy amable. Recomiendo totalmente sus servicios"
Serving Mineral Springs, NC and surrounding areas
Approved
Super Service Award Winner
In business since 2015
Free estimates
Emergency services offered
"Central Heating and Cooling did an incredible job installing my new air conditioner units! From the moment they arrived, the process was professional, smooth, and efficient. A huge shoutout to Jesus Alvarado, who led the installation—he was knowledgeable, friendly, and went above and beyond to make sure everything was done right. He took the time to walk me through the new system, answered all my questions, and made sure everything was clean and perfect before leaving. The new units are running flawlessly and keeping my home comfortable even in the hottest weather. I highly recommend Central Heating and Cooling—and especially Jesus—for top-notch HVAC service!"
+3
Serving Mineral Springs, NC and surrounding areas
Approved
In business since 2023
Free estimates
Credit card accepted
"Zack is great to deal with. He is so down to earth, honest and up-front about everything. I cannot recommend him enough. We will most certainly use him for any future projects we may have. So glad we found him. We had a single mini-split with two heads installed and his work is excellent."
Serving Mineral Springs, NC and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Small jobs welcome
"With the cooler weather coming up I was in desperate need of my heating and furnace system being fixed. Erik responded quickly and was able to fix it before it got really cold. The work he did was excellent. I would highly recommend using his services."
Serving Mineral Springs, NC and surrounding areas
Approved
Super Service Award Winner
In business since 2012
Free estimates
Emergency services offered
"Trestle Home Services did a phenomenal job. The technician was very nice and professional. I recommend Trestle Home Services with 10 stars."
+38
Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.
Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.
Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.
Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.
Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.
From average costs to expert advice, get all the answers you need to get your job done.
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